Adhesion
Collusion
noun, verbal noun, の adjective
ゆちゃく
粘着 （ねんちゃく） Cohesion, Adhesion, Adhesive
癒着 （ゆちゃく） Adhesion, Collusion
Adhesion 癒着 in the medical sense. See definition.
Could you ゆ explain medical Adhesion to Chuck ちゃく?